文本框下拉扩展器 [英] textbox dropdown extender

问题描述

我正在尝试使用下拉扩展器将下拉列表绑定到文本框.我能够使它正常工作，除非下拉列表不会展开以显示所有项目，除非您按住鼠标按钮并拖动鼠标.有没有一种方法可以强制下拉列表扩展并等待直到选择一个项目?有没有更好的选择来完成同一件事?

I am trying to get a dropdownlist tied to a textbox using the dropdown extender. I am able to get it working except the drop down list does not expand to show all items, unless you hold down the mouse button and drag the mouse. Is there a way to force the dropdownlist to expand and wait until an item is selected? Is there a better alternative to accomplish the same thing?

 <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Reviewer1Title") %>' />  
                                     <asp:DropDownExtender ID="TextBox1_DropDownExtender" runat="server" 

                                        DynamicServicePath="" Enabled="True" TargetControlID="TextBox1" DropDownControlID="DropDownList3">
                                    
                                    <asp:DropDownList ID="DropDownList3" runat="server" 

                                        DataSourceID="SqlDataSource1" DataTextField="Reviewer1Title" 

                                        DataValueField="Reviewer1Title">
                                    
                                    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 

                                        ConnectionString="<%$ ConnectionStrings:PKLConnectionString %>" SelectCommand="SELECT tblEvaluationListing.Reviewer1Title
FROM tblEvaluationListing
GROUP BY tblEvaluationListing.Reviewer1Title
HAVING ((Not (tblEvaluationListing.Reviewer1Title) Is Null));">

推荐答案

ConnectionStrings:PKLConnectionString％>" SelectCommand ="

ConnectionStrings:PKLConnectionString %>" SelectCommand="SELECT tblEvaluationListing.Reviewer1Title FROM tblEvaluationListing GROUP BY tblEvaluationListing.Reviewer1Title HAVING ((Not (tblEvaluationListing.Reviewer1Title) Is Null));">

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